Configure Branch HA with Gen-1 Platforms (2000, 3000, 7000, and 9000)

Where Can I Use This?	What Do I Need?
Prisma SD-WAN	Active Prisma SD-WAN license

The example showcases two ION 2000 devices equipped with a single pair of hardware bypass functionality. Furthermore, it accommodates the integration of ION 3000 models with four pairs of hardware bypass, as well as ION 7000 and ION 9000 models equipped with four pairs of hardware bypass capability. These ION devices mark a significant advancement in software-defined enterprise technology, using software bypass to enable elastic WAN network connectivity, enhancing both performance and adaptability.

The topology has the following features:

• The active device has one Internet connection.
• The backup device has one MPLS/Private connection.
• The ION devices operate in an active/backup configuration, and through fail-to-wire functionality, the active ION constantly maintains complete control and utilizes the full capacity of all the WAN circuits.
• The controller interface serves the purpose of monitoring device heartbeats. To achieve this, it's essential to establish a connection with a southbound switch.
• The LAN addressing is identical on both devices, permitting only the active device to use Address Resolution Protocol (ARP) and communicate with hosts and network devices below.
• The Controller addressing is unique, enabling the backup device to communicate with the controller through the active device for connectivity.
• Prisma SD-WAN facilitates the utilization of both the fabric overlay and the underlay (private MPLS). If you opt for the underlay, it's imperative to configure the necessary routing exchange between the ION device and the PE (peer edge) router.

1. Create physical connections between the interfaces of the active and backup ION device.

   1. Connect Port 5 of ION 1 to Port 1 of ION 2. (Internet).
   2. Connect Port 5 of ION 2 to Port 1 of ION 1. (MPLS).

   This ensures that the Internet and MPLS circuits are available to both the ION devices.
2. Configure bypass pairs for each ION device.

   • Between Ports 4 and 5 of the active ION device. (Port 4—WAN (Internet), Port 5—LAN)
   • Between Ports 4 and 5 of the standby ION device. (Port 4—WAN (MPLS), Port 5—LAN)

   Prisma SD-WAN facilitates the utilization of both the fabric overlay and the underlay (private MPLS). If you opt for the underlay, it's imperative to configure the necessary routing exchange between the ION device and the PE router.
3. Configure the controller interface.

   The controller interface, used for handling High Availability (HA), is responsible for establishing connections between the devices and the controller. Consequently, it is crucial that these interfaces possess external reachability (direct or via overlay) and are configured with DNS servers capable of resolving public addresses.
4. Configure an interface for LAN connectivity.

   In this example, we are configuring Port 3 for LAN connectivity to enable data exchange.

   You can use a single interface to transit to a layer 3 switch below, or alternatively, you can create multiple LAN subinterfaces and ports to communicate directly with different host subnets.

   If using a transit LAN to a layer 3 switch, you must also set up routing accordingly.

   The LAN addressing is identical on both devices, permitting only the active device to use Address Resolution Protocol (ARP) and communicate with the hosts and network devices in the LAN.
5. Add the ION Devices to the HA Groups.